Question

According to the law of conservation of energy, which of these is true?

I. Energy cannot be created.
II. Energy cannot be destroyed.
III. Energy cannot change form.

I and II

II and III

I and III

I, II, and III
@Somy @Abhisar @Abmon98 @ganeshie8 @thomaster

Answer 1

What do u think ?

Answer 2

Which do you think it is? Why or why not? It would be easier to tutor you if you explained what about the question is giving you trouble.

Answer 3

lol was gonna ask same

Answer 4

Energy can be neither created nor destroyed.

Answer 5

always remember that.

Answer 6

@somy @Abhisar 1 and 3

Answer 7

No dear !

Answer 8

why do u think so?

Answer 9

According to law of CONSERVATION OF ENERGY energy can not be created nor be destroyed in a chemical reaction.

Answer 10

1 and 2 @Somy @Abhisar

Answer 11

\(\color{blue}{\text{Originally Posted by}}\) @Abhisar
i.e in a chemical reaction energy remains conserved, it can only change forms.
\(\color{blue}{\text{End of Quote}}\)

Answer 12

look
common experience that girls go through
suppose
you want to lose weight
weight- fat
fat - is energy stored - chemical form
then u decide doing sports like running
you run- you sweat- you feel how
this is TURNING OF CHEMICAL ENERGY TO THERMAL (HEAT) ENERGY
:0
so it is possible since we do loose weight lol

Answer 13

hot*

Answer 14

@Somy ooo ok lol

Answer 15

yeah lol so Energy can change forms
thus option 3 - eliminated

Answer 16

But remember the general statement "Energy can not be created nor be destroyed" is false !

Answer 17

A chemical reaction is occurring inside a beaker and the temperature of the beaker is monitored. What would the surface of the liquid in the beaker be referred to as?

the system

the surroundings

the boundary

the universe

Answer 18

one question per post dear !
:(

Answer 19

sorry :(
@Abhisar

Answer 20

which option DOES NOT HAVE 3 as one of them
that will be your answer
this method of eliminating the wrong answer is my favorite way of doing any kind of test

Answer 21

\(\color{blue}{\text{Originally Posted by}}\) @Somy
look
common experience that girls go through
suppose
you want to lose weight
weight- fat
fat - is energy stored - chemical form
then u decide doing sports like running
you run- you sweat- you feel how
this is TURNING OF CHEMICAL ENERGY TO THERMAL (HEAT) ENERGY & MECHANICAL ENERGY
:0
so it is possible since we do loose weight lol
\(\color{blue}{\text{End of Quote}}\)

Answer 22

oh yeah post the new question separately
we all will get confused if u put everything here :P

Answer 23

Great job sammy !
I lvd ur example :D

Answer 24

lol @Abhisar thats daily life of girls lmao